NGC 6293

NGC 6293
NGC 6293 as seen through the Hubble Space Telescope
Observation data (J2000 epoch)
ClassIV
ConstellationOphiuchus
Right ascension17h 10m 10.42s
Declination−26° 34′ 54.2″
Distance31000 ly (9500 pc)
Apparent magnitude (V)9.02
Apparent dimensions (V)7.9′ × 7.9′
Physical characteristics
Metallicity[Fe/H] = −1.99 dex
Other designationsGCl 55, VDBH 215
See also: Globular cluster, List of globular clusters

NGC 6293 is a globular cluster located in the constellation Ophiuchus. Its Shapley–Sawyer Concentration Class is IV. William Herschel discovered NGC 6293 on May 24, 1784, cataloging it as Class VI, No. 12 (H VI-12). Early cataloging errors mistakenly credited Lewis Swift with the discovery in 1885, but primary historical records and modern databases officially attribute the find to Herschel. Like many other globular clusters, its distance is not well known; it may be anywhere from 31000 to 52000 light-years away from Earth.

See also

References

  1. 1 2 3 4 5 "NGC 6293 – Hartmut Frommert – SEDS". Students for the Exploration and Development of Space: SEDS. Retrieved 4 February 2017.
  2. 1 2 3 4 "NGC 6293". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 4 February 2017.
  3. ↑ William E. Harris. "Catalog of Parameters for Milky Way Globular Clusters". Retrieved 3 February 2017.
  4. ↑ "Object No. 1 – NGC 6293". NASA/IPAC extragalactic database. NASA/IPAC. Retrieved 4 October 2015.
  5. ↑ "The globular cluster NGC 6293". In-the-sky. Retrieved 4 October 2015.